Apparatus for catching and holding the reserve thread in weft-replenishing looms.



A. IMBACH. APPARATUS FOB. GATGHING AND HOLDING THE RESERVE THREAD IN WBFT REPLENISHING LOOMS APPLICATION FILED JUNE 5, 1912.

Patented Apr. 15, 1913.

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AUGUST IMBA'CH, 0F ARLEN, GERMANY, ASSIGNOR EE'O GENOSSENSCHAFT FtlR TEXTILPATENTE, OF BASEL, SWITZERLAND.

APPARATUS FOR CATOHING AND HOLDING THE RESERVE THREAD IN WEFT- REPLENISHING LOOMS. 4

To aZZ whom it may concern:

Be it known that I, AUGUST IMnacn, a citizen of the SwissRepublic, and residing at Arlen, in Germany, have made certain new and useful Improvements in Apparatus for Catching" and Holding the Reserve Thread in \Veft-Replenishing Looms, of which the following is a specification.

It has already been proposedto provide apparatus for holding a loose thread end that has been blown off by compressed air from a spool for the-purpose of threading the thread in the shuttle. Such apparatus have consisted either of boxes having peculiarly constructed false bottoms in which the loose end of the thread is caught, or of continuously rotating rollers or spindles upon which the' blown-off thread is wound. These known apparatus are however not satisfactory because the threads very often break and thus get woven into the fabric where they cause faults in the weaving and other disturbances.

The present invention has now for its object to provide an apparatus wherein this frequent and undesirable breaking of the thread when blownoff shall be effectually prevented and the thread shall be subjected to the least possible strain during the threading of the thread in the shuttle.

Inthe accompanying drawings: Figure 1 is a front elevation partly -in section, and Fig. 2 is a plan also partly insection, of one form of the improved apparatus. As shown, a is a spool ready to be pushed into the shuttle (indicated in dotted lines in Fig. 1). At a suitable distance from the point of this spool and at right angles thereto is a roller I) fixed on a hollow shaft h. This shaft 7a. is capable of rotating freely on a shaft 0, which is mounted on in the loom framing (not shown) and, is rotated by suitable means from the main loom shaft (not shown). The roller Z) is covered with card clothing'or other suitable fabric, for instance velvet, plush or woolen cloth to which cotton threads adhere very readily. The roller b is normally carried around by friction by the shaft 0. As soon however the reserve thread is blown off the spool by compressed air in the well known manner and the trailing thread (l'ha's dropped upon Specification of Letters Patent.

Application filed June 5, 1912.

.ficient to break the latter.

Patented Apr. 15, 1913. Serial No. 701,818.

the roller Z) the latter is stopped by the pull of the thread adhering to it, while the shaft 0 continues to rotate. The friction of the hollow shaft ii. on the shaft 0 is rendered so slight by copious lubrication that the rotation of the shaft 0 scarcely places any strain upon the thread, at least none which is suf- The thread d now remains stationary until the weft thread has been threaded in the shuttle (as indicated by a dash and dot line in Fig. l) and the superfluous reserve thread has been cut off automatically in the usual manner. \Vhen this is done the roller Z) is carried around again by the shaft 0, so that it rotatcs and thus winds up on to itself the loose reserve thread that is hanging on it. By this means the thread is removed from the range of the loom slay e and is thus prevented from being drawn into the fabric. The threads are removed from time to time as they accumulate, the roller 7) being made conical to facilitate this removal.

7' is the compressed air supply pipe, and g is the air cock which is operated by the weft stop motion shaft.

What I claim is:

1. ln weft replenishing looms, the combination of .a continuously rotating shaft, a roller mounted upon said shaft, means for blowing oil the reserve thread from a spool for the purpose of threading the thread in a shuttle, means for engaging said reserve thread as blown off with the roller, means for rotating the roller by aforesaid shaft with such slight friction that the roller is rendered stationary by the engagement therewitl'i of the reserve thread, means for threading the shuttle and cutting off the reserve thread whereupon said roller again rotates and winds up on itself the cut-off reserve thread.

2. In weft replenishing looms, the combi nation of a continuously rotating shaft-a roller mounted upon said shaft and covered with a material to which cottonthreads will readily adhere, means for blowing off the reserve thread from a spool forthe purpose of threading the' thread in a shuttle, means for engaging said reserve thread as blown off with the roller, means for rotating the roller by aforesaid shaft with such siight friction that the roller is rendered staname to this specification in the presence of tionary by the engagement therewith of the two subscribing Witnesses. resei ve thread, means for threading the shuttle and cutting ofi the reserve thread AUGUST LMBAOH' whereupon said roller again rotates and Witnesses: Winds up on itself the cut-0E reserve thread. GEO. GIFFORD,

In testimony whereof I have signed my ARNOLD ZUBER. 

